Combustion – Process of combustion or burner operation – Controlling or proportioning feed
Patent
1989-05-17
1990-10-02
Price, Carl D.
Combustion
Process of combustion or burner operation
Controlling or proportioning feed
431354, 431174, 137583, 137606, F23N 102
Patent
active
049603779
ABSTRACT:
A gas/air mixing valve is provided for regulating the amounts of combustion air and fuel gas that are delivered to a burner or a series of burners for use with both residential and commerical cooking ranges. The mixing valve overcomes the problem of pressure disturbances caused by known mixing valves by drawing a constant flow of combustion air regardless of whether the burner to which it is supplying fuel gas and air is off or operating at any intensity level. In a preferred embodiment the mixing valve is provided with an adjustable orifice disk which directs a constant flow or air, in selectable proportions, to either combine in the mixing valve with fuel gas for combustion or bleed to atmosphere. By always drawing a constant flow of air independently of the operating level of the burner, the mixing valve allows adjustment of individual burners with no effect on other burners connected to the system.
REFERENCES:
patent: 3229748 (1966-01-01), Spielman
patent: 4008039 (1977-02-01), Compton et al.
patent: 4622946 (1986-11-01), Hurley et al.
Grimanis Michael P.
Hurley James R.
Nunes Maurice
Shukla Kailash C.
Gas Research Insitute
Price Carl D.
Stephan F. H.
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